Invention Application
US20080118084A1 METHOD AND APPARATUS TO ENHANCE LOW FREQUENCY COMPONENT OF AUDIO SIGNAL BY CALCULATING FUNDAMENTAL FREQUENCY OF AUDIO SIGNAL
有权
通过计算音频信号的基本频率来提高音频信号的低频分量的方法和装置
- Patent Title: METHOD AND APPARATUS TO ENHANCE LOW FREQUENCY COMPONENT OF AUDIO SIGNAL BY CALCULATING FUNDAMENTAL FREQUENCY OF AUDIO SIGNAL
- Patent Title (中): 通过计算音频信号的基本频率来提高音频信号的低频分量的方法和装置
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Application No.: US11697382Application Date: 2007-04-06
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Publication No.: US20080118084A1Publication Date: 2008-05-22
- Inventor: Han-gil Moon , Manish Arora
- Applicant: Han-gil Moon , Manish Arora
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Priority: KR2006-116069 20061122
- Main IPC: H03G5/00
- IPC: H03G5/00
Abstract:
A method and apparatus to enhance a low frequency component of an audio signal, by computing a fundamental frequency of an input audio signal using the input audio signal and a delayed audio signal obtained by delaying the input audio signal by a predetermined amount of time, generating harmonic signals from the input audio signal based on the fundamental frequency, and combining the harmonic signals and the input audio signal. The low frequency component of the audio signal can be enhanced using human characteristics of perception without physically boosting the energy of the low frequency component.
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